Log-normal distribution functions

PDFLogNormal(x,mu,sigma)

PDFLogNormal(x,mu,sigma) returns the probability density at the value xof the log-normal distribution with parameters mu and sigma. Mu and sigma are the mean and standard deviation of the corresponding normal distribution.

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Graph

Function:	PDFLogNormal(,,)
	X-axis	Y-axis
Minimum:	Minimum X	Minimum Y
Maximum:	Maximum X	Maximum Y

Enter the argument(s) for the function, including the symbol x.
Enter the minimum and maximum for the X-axis and for the Y-axis.
To let the software define the Y-axis automatically, leave both input fields for the Y-axis empty.

CDFLogNormal(x,mu,sigma)

CDFLogNormal(x,mu,sigma) returns the value at x of the log-normal cumulative distribution with parameters mu and sigma.

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Graph

Function:	CDFLogNormal(,,)
	X-axis	Y-axis
Minimum:	Minimum X	Minimum Y
Maximum:	Maximum X	Maximum Y

Enter the argument(s) for the function, including the symbol x.
Enter the minimum and maximum for the X-axis and for the Y-axis.
To let the software define the Y-axis automatically, leave both input fields for the Y-axis empty.

RndLogNormal(mu,sigma)

RndLogNormal(mu,sigma) returns a random number form the log-normal distribution with parameters mu and sigma.

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See also

• Probability distribution functions